Overview

Hi! We are sun.store!

About Sun.store: we are the biggest B2B marketplace for photovoltaic (PV) components on the market ⚡. We launched the platform in October 2023 and have been scaling rapidly. Thanks to sun.store more than 35,000+ registered users from 40+ countries have access to 8.9 GW+ of solar components from 200+ brands located in 1000+ European warehouses ?. We’re disrupting the industry with 24/7 shop access, hassle-free shopping, transparent delivery, logistics coordination ?, and technical support in selecting components ?. We are Warsaw-based ? and powered by a team of 31 talented & ambitious individuals building something exceptional together.

Get to know us better on About Sun.store.

Position

Position: Junior Machine Learning Engineer

Why join us?

• shape the future of one of the hottest industries in Europe ?
• work in a fast-paced, high-growth environment where your ideas actually make an impact ⚡
• be part of a driven, collaborative team that values ownership, taking initiative, and making things happen ?

What will you do?

• assist in developing & testing ML models for pricing & logistics optimization
• analyze sales & marketplace data, extracting insights for both product & business teams
• build advanced dashboards & visualizations to present findings to the executive team
• contribute to tools that help customers understand & use our complex product offerings
• support data preprocessing, cleaning, & feature engineering
• help monitor model performance & maintain production pipelines

Who are we looking for and what’s needed to succeed

Requirements:

• Must have: good knowledge of Python & data libraries such as Pandas
• understanding of SQL, with familiarity in BigQuery
• familiarity with LLMs & frameworks like LangChain or LlamaIndex

• Nice To Have: exposure to ML libraries such as scikit-learn or lifelines
• familiarity with agent frameworks such as LangGraph or ADK
• solid understanding of statistics & its application in data analysis

• Ideally, You-ll Bring With You: proficiency in English ?? B2/C1 is a must! ??

What’s in it for you?

• We Offer:
  • competitive remuneration:
  • fixed base salary and
  • performance based monthly bonus
• contract type of your choice (B2B or UoP)
• paid time off & paid sick leave days
• paid workation ?
• company offsite once a year ?
• hybrid work model ?? 2 days/week in our Warsaw city-center office ?
• private medical care (Lux Med) ?
• Multisport card ⚽

Recruitment Process

• Stage 1: Initial Interview with Recruiter ?? phone call (45 min)
• Stage 2: Technical Task
• Stage 3: In-depth Interview with CTO ?? online meeting (60 min)
• Stage 4: Additional Interview with Co-founder ?? online meeting (30 min)

If you’re ready to shape the future of the fastest-growing B2B solar marketplace in Europe - we want to meet you! ✨

? Apply today! Let’s build something exceptional together!

About Sun.store: https://sun.store/en

LinkedIn: https://www.linkedin.com/company/sun-store-marketplace/